<SEC-DOCUMENT>0001437749-18-002393-index.html : 20180213
<SEC-HEADER>0001437749-18-002393.hdr.sgml : 20180213
<ACCEPTANCE-DATETIME>20180213170940
ACCESSION NUMBER:		0001437749-18-002393
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20171130
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180213
DATE AS OF CHANGE:		20180213

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Proto Labs Inc
		CENTRAL INDEX KEY:			0001443669
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED STRUCTURAL METAL PRODUCTS [3440]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35435
		FILM NUMBER:		18604716

	BUSINESS ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359
		BUSINESS PHONE:		763-479-7474

	MAIL ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K/A
<SEQUENCE>1
<FILENAME>prlb20180209_8ka.htm
<DESCRIPTION>FORM 8-K/A
<TEXT>
Document 1 - file: prlb20180209_8ka.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>ex_104847.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 2 - file: ex_104847.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>ex_104797.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 3 - file: ex_104797.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>ex_104798.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 4 - file: ex_104798.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>5
<FILENAME>ex_104799.htm
<DESCRIPTION>EXHIBIT 99.3
<TEXT>
Document 5 - file: ex_104799.htm

</DOCUMENT>
</SEC-DOCUMENT>